Oil Pressure Sender: Testing and Inspection

When diagnosing problems check for loose or corroded connections and for broken wires.





Remove the pressure switch, install a gauge, start the engine and measure oil pressure. Minimum oil pressure:

Idle 69 kPa [10 psi]
Rated Speed 207 kPa [30 psi]

NOTE: The pressure switch is set to actuate when oil pressure drops to 55 kPa [8 PSI]. The pressure switch will activate a Low Pressure Warning Light on the dash of the truck.